Menu-driven program using function pointers Dry Run in C

Menu-driven program using function pointers is an interactive C dry run visualizer from the Pointersfunctions programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

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Menu-driven program using function pointers Program Code

#include <stdio.h>
#include <stdlib.h>

// Function declarations
void addRecord();
void viewRecords();
void searchRecord();
void deleteRecord();
void exitProgram();

// Function pointer type for menu actions
typedef void (*MenuAction)();

int main() {
    int i;
    // Array of function pointers for menu options
    MenuAction menu[] = {addRecord, viewRecords, searchRecord, deleteRecord, exitProgram};
    char *menuOptions[] = {
        "Add Record",
        "View Records", 
        "Search Record",
        "Delete Record",
        "Exit"
    };
    
    int choice;
    
    printf("=== Student Record Management System ===\n\n");
    
    do {
        // Display menu
        printf("\n--- Menu ---\n");
        for(i = 0; i < 5; i++) {
            printf("%d. %s\n", i+1, menuOptions[i]);
        }
        printf("Enter choice: ");
        scanf("%d", &choice);
        
        if(choice >= 1 && choice <= 5) {
            printf("\n");
            menu[choice-1]();  // Call the selected function
        } else {
            printf("Invalid choice! Please try again.\n");
        }
    } while(choice != 5);
    
    return 0;
}

// Menu function implementations
void addRecord() {
    static int id = 1;
    char name[50];
    int age;
    
    printf("--- Add New Record ---\n");
    printf("Enter name: ");
    scanf("%s", name);
    printf("Enter age: ");
    scanf("%d", &age);
    printf("Record added! (ID: %d, Name: %s, Age: %d)\n", id++, name, age);
}

void viewRecords() {
    printf("--- View All Records ---\n");
    printf("Would display all records here...\n");
    printf("(In a real program, this would show stored data)\n");
}

void searchRecord() {
    char term[50];
    printf("--- Search Record ---\n");
    printf("Enter search term: ");
    scanf("%s", term);
    printf("Searching for '%s'... (Would display results)\n", term);
}

void deleteRecord() {
    int id;
    printf("--- Delete Record ---\n");
    printf("Enter ID to delete: ");
    scanf("%d", &id);
    printf("Record with ID %d deleted! (Would actually delete)\n", id);
}

void exitProgram() {
    printf("Exiting program. Goodbye!\n");
}

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